6 papers
Remarks on CP Asymmetries in $D^0/\bar {D^0} \ra K_S π^+ π^-$
S. Arunagiri
We consider the interference of resonant amplitudes leading to the final state in decays. Each of these amplitudes consists of both Cabibbo allowed a…
Spectator effects and quark-hadron duality in inclusive beauty decays
S. Arunagiri
The two important issues concerning the theory of inclusive decays are studied: (1) evaluation of expectation values of four-quark operators in order to systematically include the…
Pattern of Lifetimes of Beauty Hadrons and Quark-Hadron Duality in Heavy Quark Expansion
S. Arunagiri
We discuss (i) the evaluation of the expectation values of four-quark operators assuming that the heavy quark expansion for sector converges at the third order in , and…
On the short distance nonperturbative corrections in heavy quark expansion
S. Arunagiri
We estimate the renormalon corrections to the inclusive decay rate of heavy hadrons. We assume the gluon mass term to imitate the short distance nonperturbative effec…
Inclusive charmless semileptonic decay of Λ_b and Br(b ---> X_u l ν_l)
Somasundaram Arunagiri, Hitoshi Yamamoto
We study the inclusive charmless semileptonic decay of , , in the framework of heavy quark expansion and find that the rate is substantially enhanced by spe…
Spectators effect in inclusive beauty decays
S. Arunagiri
I review the role of the spectator quarks effect in the inclusive beauty decays. The evaluation of the expectation values of four-quark operators between hadronic states and its co…